LaunchDarkly
LaunchDarkly is a SaaS feature management and experimentation platform billed on service connections and client-side MAU; these pages cover replacing it with self-hosted Unleash, Flagsmith or GrowthBook.
Feature flags and experimentation
Open-source, self-hosted alternatives to commercial feature flag and experimentation services such as LaunchDarkly, Split and Statsig, built on Unleash, Flagsmith and GrowthBook with the CNCF OpenFeature standard.
Split (Harness FME)
Split was a feature flag and experimentation SaaS acquired by Harness and now sold as Harness Feature Management and Experimentation (FME); these pages cover replacing it with self-hosted GrowthBook or Unleash.
Statsig
Statsig is a hosted experimentation, feature flag and product analytics platform, agreed to join OpenAI in 2025 and acquired by Amplitude in 2026; these pages cover replacing it with self-hosted GrowthBook.
Optimizely Experimentation
Optimizely sells Feature Experimentation and Web Experimentation on custom, MAU-based plans. Pages here cover replacing them with self-hosted GrowthBook, or PostHog where analytics comes along.
Eppo
Eppo is a warehouse-native experimentation and feature flag platform acquired by Datadog in 2025 and sold as Eppo by Datadog. Pages here cover replacing it with self-hosted GrowthBook.
ConfigCat
ConfigCat is a hosted feature flag service priced by config JSON downloads, with unlimited seats and an on-premise plan. Pages here cover replacing it with self-hosted Unleash or Flagsmith.
VWO
VWO is an A/B testing, personalization and behavior analytics suite, now merged with AB Tasty under the Wingify brand. Pages here cover replacing it with self-hosted GrowthBook, or PostHog where heatmaps and recordings matter.
